ADI Sportster
# ADI Sportster

The ADI Sportster is a two-seat gyroplane that has been marketed in plans form for homebuilding since 1974 by Aircraft Designs Inc. It was the first homebuilt gyrocopter design to be able to carry a passenger.

The design first flew in 1974 and is built from bolted and riveted dural aluminium sheet. The rotor blades use an NACA 8H12 airfoil

## Specifications

Data from Bertrand and Kitplanes

General characteristics

* Crew: one
* Capacity: one passenger
* Length: 12 ft 0 in (3.66 m)
* Height: 8 ft 0 in (2.44 m)
* Airfoil: NACA 8H12
* Empty weight: 650 lb (295 kg)
* Gross weight: 1,100 lb (499 kg)
* Fuel capacity: 17 U.S. gallons (64 L; 14 imp gal)
* Powerplant: 1 × Lycoming O-320 4-cyl. air-cooled horizontally opposed piston engine, 150 hp (110 kW)
* Main rotor diameter: 28 ft 0 in (8.53 m)
* Main rotor area: 616 sq ft (57.2 $m^2)$

Performance

* Maximum speed: 90 mph (140 km/h, 78 kn)
* Cruise speed: 75 mph (121 km/h, 65 kn)
* Range: 150 mi (240 km, 130 nmi)
* Service ceiling: 12,000 ft (3,700 m)
* Rate of climb: 1,000 ft/min (5.1 m/s)
* Disk loading: 1.8 lb/sq ft (8.8 $kg/m^2)$
* Power/mass: 0.14 hp/lb (0.22 kW/kg)

Avionics

* none
